17:06 O E 0 •體三сТ2(1).pdfQ 88TCTQ2Assuming the clearance is negligible for a single stage compressor with the followingdata.Atmospheric pressure: 90 kPaAtmospheric temperature: 17 CDelivery pressure: 7 barFree air delivery flow rate: 0.2 m/minTake "n" as 1.3, Cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg KAnswer the questions for ethuto testWith reference to filesCTQ2 for question:Using file 2, whichformula number will beused to evaluate thedelivery temperature foran isentropic complessionprocess?III

To obtain the temperature of the gas after the isentropic compression, the given relation must be…

Answered: Assuming the clearance is negligible…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Assuming the clearance is negligible for a single stage compressor with the following data.Atmospheric pressure: 90 kPaAtmospheric temperature: 17 ˚CDelivery pressure: 7 barFree air delivery flow rate: 0.2 m3/minTake “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K 1.What is the power input to the compressor in kW to 3 decimal places if the compression reversible isothermal?
Assuming the clearance is negligible for a single stage compressor with the followingdata.Atmospheric pressure: 90 kPaAtmospheric temperature: 17 ˚CDelivery pressure: 7 barFree air delivery flow rate: 0.2 m3/minTake “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K 1. What is the power input to the compressor in kW to 2 decimal places if the compression is polytropic compression process with n=1.25? 2. What is the delivery temperature of air for an isentropic compression process in Kelvin to 1 decimal place? 3. What is the power input to the compressor in kW to 3 decimal places if the compression reversible isothermal?
Single stage, single-acting air compressor. Air delivery for this device is 30 bar at a speed of 1500 rev/min. The atmospheric condition of his location is 87 kPa and 20 ˚C, with a FAD of 0.22 m2/min. The clearance volume is 4% of the swept volume and the stoke/bore ratio is 1.3/1. Take “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg KW 1.What is the isothermal power of the compressor in kW to 2 decimal places in kW? 2. which formula will be used to evaluate the isothermal efficiency? 3. which formula will be used to evaluate the delivery volume? 4. What is the induced volume in terms of stroke volume, provide the coefficient values of the swept volume to 4 decimal places?
Assuming the clearance is negligible for a single stage compressor with the following data.Atmospheric pressure: 90 kPaAtmospheric temperature: 17 ˚CDelivery pressure: 7 barFree air delivery flow rate: 0.2 m3/minTake “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K 1.What is the power input to the compressor in kW to 2 decimal places if the compression is polytropic compression process with n=1.25?
Consider a reciprocating air compressor with 3-stage, 7.2 m3/min free air delivery at atmospheric conditions of 144 kPa and 26 0C, respectively. The polytropic compression index is 1.34, while the delivery pressure is 1,665 kPa. The mechanical and motor-drive efficiencies are 85% and 93%, respectively. Accept complete inter-cooling and neglect clearance volumes. If the specific heat capacity of air at constant pressure and volume are 1.006 kJ/kg K and 0.716 kJ/kg K, respectively. Calculate the rate of heat rejected in the intercooler in kilowatt to 1 decimal place.
Consider a reciprocating air compressor with two-stage, 6.8 m3/min free air delivery at atmospheric conditions of 107 kPa and 19 0C, respectively. The polytropic compression index is 1.21, while the delivery pressure is 2,294 kPa. The mechanical and motor-drive efficiencies are 85% and 93%, respectively. Accept complete inter-cooling and neglect clearance volumes. What is the delivery air temperature in C to no decimal
Assuming the clearance is negligible for a single stage compressor with the followingdata.Atmospheric pressure: 90 kPaAtmospheric temperature: 17 ˚CDelivery pressure: 7 barFree air delivery flow rate: 0.2 m3/minTake “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K Calculatate the following 1 )Evaluate the mass flow rate of air inside the compressor operating isentropically in kg/min to 3 decimal places. 2 ) What is the power input to the compressor in kW to 3 decimal places if the compression reversible isothermal? 3 ) What is the power input to the compressor in kW to 2 decimal places if the compression is polytropic compression process with n=1.25?
A three-stage, single-acting air compressor with a polytropic index of 1.22 in all stages,runs in an atmosphere at 101.3 kPa and 25 0C. It has a FAD of 4.2 m3/min with adelivery pressure of 1.8 MPa. Induction occurs at 92 kPa and 34 0C. The mechanicaland motor-drive efficiencies are 88% and 93% respectively. Assume complete intercooling and neglect clearance volumes.cp = 1.006 kJ/kg K cv = 0.717 kJ/kg K 1. calculate the rate of heat rejected in the 2nd intercooler (kW) ? round off to 3 decimal places 2. calculate the mass flow rate of the air in the compressor (kg/min) ?round off to 3 decimal places. 3. calculate the indicated power required of the compressor in kW? round off to 1 decimal place. 4. calculate the input power required from an electric motor? round off to 0 decimal place.
A single-stage, single-acting air compressor running at 1000 rev/min delivers air at 2.5 MPa bar. For this purpose the induction and free air conditions can be taken as 1 atm and 15 °C, and the FAD as 0.25 m³/min. The clearance volume is 3% of the swept volume and the stroke/bore ratio is 1.2/1. Determine; (i) the bore and stroke; the swept volume, Vs; the delivery temperature, T2; the volumetric efficiency; the indicated power; and the isothermal efficiency.
1. A centrifugal pump delivers 900 ?3/ℎ? of sea water (sp.gr.= 1.03) from a source wherethe water level varies 2 m from high to low tide level. The pump centerline is located2.6 m above the surface of the water at high tide. The pump discharges into theatmospheric surface condenser, 3 m above the pump centerline. Loss of head due tofriction in the suction pipe is 0.8 m and that in the discharge side is 3 m. Pump is directlycoupled to a 1750 rpm, 460 volts, 3 phase, 60 Hz. Calculate: a) total dynamic headb) pump theoretical powerc) power to drive the pump if pump efficiency is 82%
A single-stage, single-acting air compressor with runs at speed 600 rpm. It has a polytropic index of 1.26. The induced volume flow rate is 0.94 cubic meters per min and the air must be delivered at a pressure of 660 kPa. The free air conditions are 101.3 kPa and 15°C. The clearance volume is 6% of the stroke volume and the stroke/bore ratio is 1.6/1. 1. Calculate the delivery air temperature (in °C) 2. The volume of air induced into the compressor is ____ m3
A single acting, two stage, reciprocating compressor receives air at 100 KPa and air capacity of 0.05 m3/sec and delivered at 400 KPa. The clearance volume is taken to be 8 %. The compression and expansion process is isentropic with compressor mean piston speed of 150 meter/min. Assuming that each piston has the same amount of stroke. no pressure drops at the suction and discharge ports of the compressor and perfect intercooling, determine: a) The piston diameter in centimeters b) The total power required in Kilowatts c) The heat loss at the intercooler in Kilowatts

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